Hello! With the mini-client, you will see the windows taskbar (if it is locked in place) even when you "Maximize" the window screen of the Mini-client. If the taskbar is something you don't want to see (whether it is because it is not great visually or for any other reason like it is blocking something from view), you can actually hide the taskbar. To hide the taskbar, you can Right-Click the taskbar and open up the "Taskbar Settings" and toggle the "Automatically hide the taskbar in desktop mode".

Please use the Bug/Support section in the future for support related inquiries. Thank you